You may not think there's much to learn about filling and using an oil lamp, but there are some little tips and tricks to make the job easy. It's not like flipping a light switch. It isn't difficult but, done correctly, it will become second nature to you.
When the power goes out due to a storm, disaster, or power company issue, it's comforting to have several methods of providing light when evening comes.
Candles and flashlights are very useful, but an oil lamp will burn from 60-120 hours, allowing your family to play games or read to take your minds off that TV show you know you're missing.
Many people advocate using vegetable oils in oil lamps. If you don't mind the "off" smell, these types of oil can be used. (Using a few drops of your favorite essential oil will help disguise the smell.) If you have stored a lot of vegetable oil and it goes rancid, it would be better to burn it in your lamp than consume it. Rancid oil can be very detrimental to your health — like poison. However, I must caution you never to use gasoline, alcohol or camping fuel in an oil lamp. They are too volatile and burn dirty. By the way, the so-called "odorless" lamp oils are not completely odorless, but if you had to use your oil lamp for days, you would probably get used to the smell.
When storing lamp oil, be aware that it can actually freeze below 20 degrees. It's best to have your oil at room temperature before filling the lamp. Cold oil burns a bit faster than oil at room temperature (I have no idea why) — oil will burn about 1/2 ounce per hour. That means a half gallon of oil will last approximately 140-150 hours. (Vegetable oils will last slightly less.)
If lamp oil comes in a plastic container, it's best to transfer it to a glass or metal container for long term storage. The plastic containers become brittle after a while and can be easily broken or punctured.
After an oil lamp has been burning for any substantial length of time, the chimney will be extremely hot. If you absolutely must move the lamp, do so by the handle only — carefully. Better yet, set the lamp where you want it in the first place and don't move the lamp once you've lighted it.
After turning it off for the night, let it sit for a few minutes to cool slightly and then you can move it to a secure out-of-the-way spot until it's needed again.
Do not put the hot lamp or chimney on a cold tile counter—it could crack the lamp or the tile. Set the hot lamp on a pot holder or folded towel to cool.
Afraid of running out of wicks? Don't be. In the first place, wicks are cheap. An 8 inch wick will last through about 15 gallons of lamp oil. Wicks burn 1/4 to 1/2 inch for every half-gallon of oil.
So if you have stocked up on wicks, don't fret — use them for bartering. I'm sure there are people who haven't prepared with enough wicks.
Never burn dry wicks. Always make sure they are completely soaked in lamp oil. If you see any smoke while your wick is lit then you’ve got the flame too high.
For optimum burning, the wick should be periodically trimmed to remove the burned edges and carbon deposits. Do this when the lamp is cold. Cut off the burned edges with scissors rather than just pinching them off with your fingers.
Seriously — they're easy to make. First, make sure you use only 100% cotton fabric. Don't throw out those old worn out T-shirts (not the ones made with polyester). Don't use nylon rope or paracord.
As you are aware, burning oils causes soot and this will build up on the chimney of your lamp over time. Keeping the flame small will lessen the amount of soot. But the soot must be cleaned out periodically as it can actually cause a fire. Soot build-up will also lessen the amount of light shining through the glass and choke out some of the oxygen needed for a nice, even burn on the wick.
Putting out the flame is easy — just cup your hand above the chimney and blow a small burst of air down the chimney. Light out.
Living without electricity can be very annoying. But if you have plenty of light from several oil lamps or other sources, you can hunker down with a good game and enjoy each others' company while the TV sleeps.